Fast forward to March 2018, and it appears that company is looking to launch a successor to the Surface Hub.

Thurrott reports that the "Surface Hub 2" is being developed under the codename "Aruba", and that Microsoft plans to announce it in the first half of this year. Although detailed specifications are currently unknown, expect to see improved hardware and new software features; the latter of which will also be brought to the original Surface Hub through an update.

Microsoft says that:

Surface Hub created an entirely new device category and we’re thrilled with the strong momentum we have seen across the globe. We’re working on V2 and will share more in the first half of this year.